diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7986-eth.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7986-eth.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7986-eth.c b/drivers/clk/mediatek/clk-mt7986-eth.c new file mode 100644 index 0000000000..7ab78e0f49 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7986-eth.c @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2021 MediaTek Inc. + * Author: Sam Shih <sam.shih@mediatek.com> + * Author: Wenzhen Yu <wenzhen.yu@mediatek.com> + */ + +#include <linux/clk-provider.h> +#include <linux/mod_devicetable.h> +#include <linux/platform_device.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include <dt-bindings/clock/mt7986-clk.h> + +static const struct mtk_gate_regs sgmii0_cg_regs = { + .set_ofs = 0xe4, + .clr_ofs = 0xe4, + .sta_ofs = 0xe4, +}; + +#define GATE_SGMII0(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &sgmii0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate sgmii0_clks[] = { + GATE_SGMII0(CLK_SGMII0_TX250M_EN, "sgmii0_tx250m_en", "top_xtal", 2), + GATE_SGMII0(CLK_SGMII0_RX250M_EN, "sgmii0_rx250m_en", "top_xtal", 3), + GATE_SGMII0(CLK_SGMII0_CDR_REF, "sgmii0_cdr_ref", "top_xtal", 4), + GATE_SGMII0(CLK_SGMII0_CDR_FB, "sgmii0_cdr_fb", "top_xtal", 5), +}; + +static const struct mtk_gate_regs sgmii1_cg_regs = { + .set_ofs = 0xe4, + .clr_ofs = 0xe4, + .sta_ofs = 0xe4, +}; + +#define GATE_SGMII1(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &sgmii1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate sgmii1_clks[] = { + GATE_SGMII1(CLK_SGMII1_TX250M_EN, "sgmii1_tx250m_en", "top_xtal", 2), + GATE_SGMII1(CLK_SGMII1_RX250M_EN, "sgmii1_rx250m_en", "top_xtal", 3), + GATE_SGMII1(CLK_SGMII1_CDR_REF, "sgmii1_cdr_ref", "top_xtal", 4), + GATE_SGMII1(CLK_SGMII1_CDR_FB, "sgmii1_cdr_fb", "top_xtal", 5), +}; + +static const struct mtk_gate_regs eth_cg_regs = { + .set_ofs = 0x30, + .clr_ofs = 0x30, + .sta_ofs = 0x30, +}; + +#define GATE_ETH(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, ð_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) + +static const struct mtk_gate eth_clks[] = { + GATE_ETH(CLK_ETH_FE_EN, "eth_fe_en", "netsys_2x_sel", 6), + GATE_ETH(CLK_ETH_GP2_EN, "eth_gp2_en", "sgm_325m_sel", 7), + GATE_ETH(CLK_ETH_GP1_EN, "eth_gp1_en", "sgm_325m_sel", 8), + GATE_ETH(CLK_ETH_WOCPU1_EN, "eth_wocpu1_en", "netsys_mcu_sel", 14), + GATE_ETH(CLK_ETH_WOCPU0_EN, "eth_wocpu0_en", "netsys_mcu_sel", 15), +}; + +static const struct mtk_clk_desc eth_desc = { + .clks = eth_clks, + .num_clks = ARRAY_SIZE(eth_clks), +}; + +static const struct mtk_clk_desc sgmii0_desc = { + .clks = sgmii0_clks, + .num_clks = ARRAY_SIZE(sgmii0_clks), +}; + +static const struct mtk_clk_desc sgmii1_desc = { + .clks = sgmii1_clks, + .num_clks = ARRAY_SIZE(sgmii1_clks), +}; + +static const struct of_device_id of_match_clk_mt7986_eth[] = { + { .compatible = "mediatek,mt7986-ethsys", .data = ð_desc }, + { .compatible = "mediatek,mt7986-sgmiisys_0", .data = &sgmii0_desc }, + { .compatible = "mediatek,mt7986-sgmiisys_1", .data = &sgmii1_desc }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt7986_eth); + +static struct platform_driver clk_mt7986_eth_drv = { + .driver = { + .name = "clk-mt7986-eth", + .of_match_table = of_match_clk_mt7986_eth, + }, + .probe = mtk_clk_simple_probe, + .remove_new = mtk_clk_simple_remove, +}; +module_platform_driver(clk_mt7986_eth_drv); + +MODULE_DESCRIPTION("MediaTek MT7986 Ethernet clocks driver"); +MODULE_LICENSE("GPL"); |